The weather observed at BOSTON, MA (KBOS) at 05:54 AM EST was: The skies were cloudy. Temperature: 39F ( 4C) Dewpoint: 36F ( 2C) Relative Humidity: 87% Winds from the NNE(020 degs) at 22 mph. Pressure: 1016.0 millibars. Altimeter:30.01 inches of mercury. The prevailing visibility was 8 miles.